Jack Dillon, sometimes called "Jack the Giant Killer" for his ability to handle the most dangerous heavyweights of his era, was the World Light Heavyweight Champion 1914-1916.

Dillon's real name was Ernest Culter Price. He took the name Jack Dillon from Sidney Dillon, after Price had worked at the place where the famous racehorse of that name was stabled. At his first fight, Price appeared very nervous. When asked his name, he said "Sidney Dillon." The referee misunderstood him, and bawled out "Jack Dillon!" (Source: May 20, 1916 Tacoma Daily News).

In retirement, Dillon lived next door to a restaurant he owned in operated. Dillon died August 7, 1942, in Chattahoochee, Florida.